If you are designing a high-capacity pneumatic conveying line or a custom vacuum array, you will eventually encounter the term "Bare Shaft." Put simply, a 2RB 713-1HY99 Bare Shaft Ring Blower is the core air-moving mechanism without an integrated motor. It provides the "heart" of the system, leaving the choice of power—whether it be a specific high-efficiency electric motor, a diesel engine, or a specialized VFD-driven setup—entirely up to your engineering team.
Why "Bare Shaft" Flexibility is Critical for System Stability
Standard blowers come with fixed motor configurations, which can be a bottleneck in specialized environments. By choosing the 2RB 713-1HY99 Bare Shaft model, you gain three critical engineering advantages:
Custom Speed Matching: You can select a motor that exactly matches your facility's power supply or desired RPM, ensuring the blower operates at its peak efficiency point rather than a "compromise" speed.
Maintenance Independence: If your drive motor fails, you can replace the motor without dismantling the blower's core air-channel. This dramatically reduces downtime in 24/7 industrial environments.
Direct Drive Optimization: You can implement precise flexible coupling, which eliminates the vibration issues common in integrated "off-the-shelf" blower/motor combos, leading to a much longer mechanical lifespan.
Where the 2RB 713-1HY99 Fits in Your Solutions
The 2RB 713-1HY99 is designed for heavy-duty industrial workflows that require high-pressure resilience. Because it lacks a pre-attached motor, it is the building block for custom "skid-mounted" systems:
Pneumatic Conveying: It is used as the base for central vacuum systems where a large external motor is needed to drive high-volume air movement across long distances.
Integration with VFDs: You can pair this bare-shaft unit with a high-torque motor and a Variable Frequency Drive, allowing you to "throttle" your air pressure dynamically based on the real-time load of your production line.
High-Heat Environments: You can mount the motor outside the primary heat zone of your process, using a long shaft or belt drive to isolate the electrical components from high-temperature air streams.
Q&A: Engineering the Bare Shaft Blower
Q: Is a Bare Shaft Blower harder to install than a standard blower? A: It requires more precision in initial setup—specifically regarding shaft alignment and coupling—but the long-term payoff is a system that is perfectly tuned to your application. We provide the alignment tolerances for the 2RB 713-1HY99 to ensure your team sets it up with factory-standard accuracy.
Q: Can I use any motor with the 2RB 713-1HY99? A: You must select a motor that matches the power rating and shaft diameter specifications detailed in our engineering manual. Using an under-powered motor will cause the blower to underperform, while an over-powered motor requires careful coupling to avoid shaft fatigue.
The Verdict: Custom Control equals Peak Performance The 2RB 713-1HY99 Bare Shaft Ring Blower is for the engineer who wants complete control over their air system. It isn’t just a component; it is the foundation of a high-performance, long-lasting industrial machine.
Bare Shaft Side Channel Blowers product information
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